Modified the "breakpoint set --name NAME" to be the auto breakpoint set

function. It will inspect NAME and do the following:
- if the name contains '(' or starts with "-[" or "+[" then a full name search
  will happen to match full function names with args (C++ demangled names) or
  full objective C method prototypes.
- if the name contains "::" and no '(', then it is assumed to be a qualified
  function name that is in a namespace or class. For "foo::bar::baz" we will
  search for any functions with the basename or method name of "baz", then
  filter the results to only those that contain "foo::bar::baz". This allows
  setting breakpoint on C++ functions and methods without having to fully
  qualify all of the types that would appear in C++ mangled names.
- if the name contains ":" (not "::"), then NAME is assumed to be an ObjC
  selector.
_ otherwise, we assume just a plain function basename.

Now that "--name" is our "auto" mode, I introduced the new "--basename" option
("breakpoint set --basename NAME") to allow for function names that aren't 
methods or selectors, just basenames. This can also be used to ignore C++
namespaces and class hierarchies for class methods.

Fixed clang enumeration promotion types to be correct.

llvm-svn: 116293